A beautifully preserved split ammonite from Madagascar, carefully cut and polished to reveal the intricate internal chamber structure preserved within this ancient marine animal.
Each half measures approximately 4.6" tall and 3.7" wide, displaying the iconic spiral form that has fascinated collectors for generations. The polished faces reveal dozens of individual chambers naturally filled with mineral deposits over millions of years, creating striking contrasts between earthy brown shell material and pale crystalline calcite.
As the ammonite grew, it created new chambers within its shell, leaving behind the distinctive segmented pattern visible today. This specimen preserves that remarkable structure in exceptional detail, offering a direct glimpse into life in Earth's ancient oceans.
The two halves originate from the same ammonite and fit together to form the original fossil shell, allowing both the exterior form and internal chamber structure to be appreciated. Displayed together, they create a striking natural history specimen for a fossil collection, curiosity cabinet, office, or library.
Details
Species: Ammonite
Size: Approximately 4.6" tall × 3.7" wide each half
Locality: Madagascar
Two polished halves of a single ammonite
Natural mineral-filled chambers
Displays both internal and external fossil structure
One-of-a-kind fossil specimen
You will receive the exact ammonite pair pictured.
4.6" Madagascar Ammonite | Polished Halves | Display Specimens
Orders ship at a flat rate of $8 within the United States, with free U.S. shipping on orders over $50 (before tax). Due to the delicate and one-of-a-kind nature of curated specimens, returns and exchanges are not accepted. For full details on sourcing, care, and policies, see Notes from the Cabinet.